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dmaengine: sun6i: Retrieve channel count/max request from devicetree
To avoid introduction of a new compatible for each small SoC/DMA controller variation, move the definition of the channel count to the devicetree. The number of vchans is no longer explicit, but limited by the highest port/DMA request number. The result is a slight overallocation for SoCs with a sparse port mapping. Signed-off-by: Stefan Brüns <[email protected]> Acked-by: Maxime Ripard <[email protected]> Signed-off-by: Vinod Koul <[email protected]>
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